Are there any know problems with the Aimpoint like the battery contact problems with the EOtech ? I can see how the Eotech would have a problem the AA battery is in a position to shift under recoil and over time cause a problem. I can see how the Aimpoint would not have the problem. The new Comp4 uses the AA battery are the contacts set up different than the Eotech. The lite weight 3 volt would be less of a problem under recoil , I would think. School me on it does anybody see the AA Aimpoint Comp4 running into a battery problem down the road,